7 research outputs found
Evidence for a planetary mass third body orbiting the binary star KIC 5095269
In this paper, we report the evidence for a planetary mass body orbiting the
close binary star KIC 5095269. This detection arose from a search for eclipse
timing variations among the more than 2,000 eclipsing binaries observed by
Kepler. Light curve and periodic eclipse time variations have been analysed
using Systemic and a custom Binary Eclipse Timings code based on the Transit
Analysis Package which indicates a object orbiting every
around a primary and secondary in an
18.6d orbit. A dynamical integration over years suggests a stable
orbital configuration. Radial velocity observations are recommended to confirm
the properties of the binary star components and the planetary mass of the
companion.Comment: 8 pages, 7 figures, Accepted for publication in MNRA
The detectability of binary star planetary and brown dwarf companions from eclipse timing variations
In this paper, we determine the detectability of eclipsing binary star companions from eclipse timing variations using the Kepler mission data set. Extensive and precise stellar time-series photometry from space-based missions enable searches for binary star companions. However, due to the large data sets and computational resources involved, these searches would benefit from guidance from detection simulations. Our simulations start with and benefit from the use of empirical Kepler mission data, into which we inject third bodies to predict the resulting timing of binary star eclipses. We find that the orbital eccentricity of the third body and the orbital period of the host binary star are the key factors in detecting companions. Target brightness is also likely to be a factor in detecting companions. Detectable third body masses and periods can be efficiently bound using just two equations. Our results enable the setting of realistic expectations when planning searches for eclipsing binary star planetary and brown dwarf companions. Our results also suggest the brown dwarf desert is real rather than observational selection
Меня милый праважал
Меня милый праважал / Всю сямейку рассказал: / Папа, мама, два браты, / Пяты – я, шэстая – ты